Prabhu, CA

Ashok Prabhu, San Jose, CA US

Patent application number

Description

Published

20080241993

GANG FLIPPING FOR IC PACKAGING - A method of handling an IC wafer that includes a multiplicity of dice is described. Solder bumps are formed on bond pads on the active surface of the wafer. The back surface of the bumped wafer is adhered to a first mount tape. The wafer is singulated while it is still secured to the first tape to provide a multiplicity of individual dice. The active surfaces of the singulated dice are then adhered to a second tape with the first tape still adhered to the back surfaces of the dice. The first tape may then be removed. In this manner, the back surfaces of the dice may be left exposed and facing upwards with the active surfaces of the dice adhered to the second tape. The described method permits the use of a conventional die attach machine that is not designated for use as a flip-chip die attach machine.

10-02-2008

Ashok S. Prabhu, San Jose, CA US

Patent application number

Description

Published

20080241991

GANG FLIPPING FOR FLIP-CHIP PACKAGING - An improved method and apparatus for packaging integrated circuits are described. More particularly, a method and apparatus for use in securing a plurality of integrated circuit dice to a lead frame panel are described. Each integrated circuit die includes an active surface having a multiplicity of solder bumps. The lead frame panel includes an array of device areas, each including a plurality of leads. The method includes positioning a plurality of dice into designated positions on a carrier such that the active surfaces of the dice are facing upwards. The carrier includes a carrier frame including an associated array of carrier device areas. A lead frame panel may be positioned over the carrier such that the solder bumps on the active surfaces of the dice are adjacent and in contact with the associated leads of the associated device areas.

LOW PROFILE PACKAGE AND METHOD - In a method aspect, a multiplicity of ICs are attached to routing on a structurally supportive carrier (such as a wafer). The dice are encapsulated and then both the dice and the encapsulant layer are thinned with the carrier in place. A second routing layer is formed over the first encapsulant layer and conductive vias are provided to electrically couple the first and second routing layers as desired. External I/O contacts (e.g. solder bumps) are provided to facilitate electrical connection of the second routing layer (or a subsequent routing layer in stacked packages) to external devices. A contact encapsulant layer is then formed over the first encapsulant layer and the second routing layer in a manner that embeds the external I/O contacts at least partially therein. After the contact encapsulant layer has been formed, the carrier itself may be thinned significantly and singulated to provide a number of very low profile packages. The described approach can also be used to form stacked multi-chip packages.

Brahmavar Prabhu, Los Angeles, CA US

Patent application number

Description

Published

20140203077

INTELLIGENT ELECTRIC VEHICLE CHARGING SYSTEM - A battery charging system for an electric vehicle in which an addressable RFID tag, an RFID receiver, an electrical charger, and a controller operate to charge the battery of an electric vehicle according to a user profile and a charging profile in response to a signal received by the RFID reader from the RFID tag. In an interconnected system, multiple charging stations are connected to the electrical power grid and communicate with a central controller through communications links. A grid converter can be provided to allow for backfilling power from an electric vehicle to the power grid in response to a command from the central controller.

07-24-2014

Edan Prabhu, Mission Viejo, CA US

Patent application number

Description

Published

20090100820

Oxidizing Fuel - A mixture of air and fuel is received into a reaction chamber of a gas turbine system. The fuel is oxidized in the reaction chamber, and a maximum temperature of the mixture in the reaction chamber is controlled to be substantially at or below an inlet temperature of a turbine of the gas turbine system. The oxidation of the fuel is initiated by raising the temperature of the mixture to or above an auto-ignition temperature of the fuel. In some cases, the reaction chamber may be provided without a fuel oxidation catalyst material.

04-23-2009

20090100821

Managing leaks in a gas turbine system - A mixture of air and fuel is compressed in a compressor of a gas turbine system. The gas turbine system includes components that define one or more fuel leak locations, and leaked fuel is directed from the one or more leak locations to a reaction chamber of the gas turbine system. At least a portion of the leaked fuel is oxidized in the reaction chamber. The energy released by oxidation of the leaked fuel can be converted to mechanical motion.

04-23-2009

20100139282

Oxidizing Fuel in Multiple Operating Modes - A fuel oxidizer system is operated in a first operating mode. In the first operating mode, a mixture that includes fuel from a fuel source is compressed in a compressor of the fuel oxidizer system; the fuel of the compressed mixture is oxidized in a reaction chamber of the fuel oxidizer system; and the oxidized fuel is expanded to generate rotational kinetic energy. The fuel oxidizer system is operated in a second operating mode. In the second operating mode, fuel from the fuel source is directed to bypass the compressor, and the fuel that bypassed the compressor is oxidized in the reaction chamber.

06-10-2010

20100275611

Distributing Fuel Flow in a Reaction Chamber - A substantially homogeneous air/fuel mixture is distributed into an oxidation reaction chamber at a plurality of discrete locations about an interior of the oxidation reaction chamber. The oxidation reaction chamber has an internal temperature sufficient to oxidize the fuel in the air/fuel mixture. The air/fuel mixture are retained in the oxidation reaction chamber as the fuel of the air/fuel mixture oxidizes. The heat released by the oxidation maintains a temperature substantially throughout the reaction chamber at a temperature sufficient to oxidize the fuel in the air/fuel mixture.

11-04-2010

20100319355

HEATING A REACTION CHAMBER - An air/fuel mixture is received in an oxidation reaction chamber. The air/fuel mixture has a low concentration of fuel, for example, below a lower explosive limit (LEL). The mixture is received while a temperature of a region in the oxidation reaction chamber is below a temperature sufficient to oxidize the fuel. The temperature of the region is raised to at least the oxidation temperature (the temperature sufficient to oxidize the fuel) primarily using heat energy released from oxidizing the air/fuel mixture in a different region in the reaction chamber.

12-23-2010

20140196467

OXIDIZING FUEL - A mixture of air and fuel is received into a reaction chamber of a gas turbine system. The fuel is oxidized in the reaction chamber, and a maximum temperature of the mixture in the reaction chamber is controlled to be substantially at or below an inlet temperature of a turbine of the gas turbine system. The oxidation of the fuel is initiated by raising the temperature of the mixture to or above an auto-ignition temperature of the fuel. In some cases, the reaction chamber may be provided without a fuel oxidation catalyst material.

07-17-2014

20140202165

OXIDIZING FUEL IN MULTIPLE OPERATING MODES - A fuel oxidizer system is operated in a first operating mode. In the first operating mode, a mixture that includes fuel from a fuel source is compressed in a compressor of the fuel oxidizer system; the fuel of the compressed mixture is oxidized in a reaction chamber of the fuel oxidizer system; and the oxidized fuel is expanded to generate rotational kinetic energy. The fuel oxidizer system is operated in a second operating mode. In the second operating mode, fuel from the fuel source is directed to bypass the compressor, and the fuel that bypassed the compressor is oxidized in the reaction chamber.

07-24-2014

Patent applications by Edan Prabhu, Mission Viejo, CA US

Edan D. Prabhu, Mission Viejo, CA US

Patent application number

Description

Published

20110219780

PROCESSING FUEL AND WATER - Fuel is oxidized with air in a pressurized reaction chamber containing water. Water, fuel, or both may be communicated into the reaction chamber in a gaseous state, a liquid state, or both. For example, a liquid mixture that includes the water and/or the fuel can be evaporated to form a gas mixture, and the gas mixture can be communicated into the reaction chamber. Additionally or alternatively, the liquid mixture that includes the water and/or the fuel can be communicated into the reaction chamber and evaporated in the reaction chamber. The water and the fuel may be communicated into the reaction chamber separately or in combination.

09-15-2011

20120297773

GASIFIER POWER PLANT AND MANAGEMENT OF WASTES - Described herein are gradual oxidation systems that receive and process solid, liquid, or gaseous fuels. The system can include a solid fuel gasifier that extracts and cleans gas fuel from a solid fuel. The system can also include a reaction chamber that receives the gas fuel and maintains a gradual oxidation process of the fuel. In some embodiments, liquids containing contaminants can be oxidized within the gradual oxidation chamber. Liquid fuels and gas fuels may be communicated to the oxidation chamber separately or in combination.

11-29-2012

20120297775

INTEGRATED GASIFIER POWER PLANT - Described herein are gradual oxidation systems that receive and process solid, liquid, or gaseous fuels. The system can include a solid fuel gasifier that extracts and cleans gas fuel from a solid fuel. The system can also include a reaction chamber that receives the gas fuel and maintains a gradual oxidation process of the fuel. In some embodiments, liquids containing contaminants can be oxidized within the gradual oxidation chamber. Liquid fuels and gas fuels may be communicated to the oxidation chamber separately or in combination.

11-29-2012

Gautam Prabhu, San Francisco, CA US

Patent application number

Description

Published

20080244431

PRODUCT REVIEW SYSTEM INCLUDING REVIEWER PURCHASE INDICATOR - A system for presenting keywords obtained from users in a review process. The keywords are displayed along with a use value that reflects the number of times users have voted or selected the keyword as being relevant or effective in a review of a product. The keywords can be used to assist consumers in deciding whether to purchase a product or a service, in determining a brand's reputation, or for other purposes. Keywords can be ranked according to usage criteria such as the frequency of use of the keyword in reviews, the reputation of a user/reviewer who created or used the keyword, etc. Rankings can be dynamically updated when keyword usage changes. Such as when a keyword declines in popularity, when words change in meaning or become obsolete or irrelevant with respect to their original intent, etc. Keywords can be used as filters for product searches.

10-02-2008

20100114883

SYSTEM FOR DYNAMIC PRODUCT SUMMARY BASED ON CONSUMER-CONTRIBUTED KEYWORDS - A system for presenting keywords obtained from users in a review process. The keywords are displayed along with a use value that reflects the number of times users have voted or selected the keyword as being relevant or effective in a review of a product. The keywords can be used to assist consumers in deciding whether to purchase a product or a service, in determining a brand's reputation, or for other purposes. Keywords can be ranked according to usage criteria such as the frequency of use of the keyword in reviews, the reputation of a user/reviewer who created or used the keyword, etc. Rankings can be dynamically updated when keyword usage changes. Such as when a keyword declines in popularity, when words change in meaning or become obsolete or irrelevant with respect to their original intent, etc. Keywords can be used as filters for product searches.

05-06-2010

20120096454

APPLICATION SERVICE PROVIDER DELIVERY SYSTEM - In one embodiment, a display engine and one or more data files are determined. They are then sent to a website provider's network. The display engine and data are used to provide ASP functionality without contacting the ASP network for every user request. So even if the ASP network is not available, the ASP functionality provided by the display engine and data is always accessible to the website provider. For example, the website provider's network may provide the ASP functionality by displaying data in one or more data files at a user's display device. This is performed without relying on the availability of the ASP network.

04-19-2012

Patent applications by Gautam Prabhu, San Francisco, CA US

Gopal Prabhu, San Jose, CA US

Patent application number

Description

Published

20100273329

METHOD FOR PREPARING A DONOR SURFACE FOR REUSE - A donor wafer, for example of silicon, has an irregular surface following cleaving of a lamina from the surface, for example by exfoliation following implant of hydrogen and/or helium ions to define a cleave plane. Pinholes in the lamina leave column asperities at the exfoliated surface of the donor wafer, and the beveled edge may leave an edge asperity which fails to exfoliate. To prepare the surface of the donor wafer for reuse, mechanical grinding removes the column and edge asperities, and minimal additional thickness. Following cleaning, growth and removal of an oxide layer at the surface rounds remaining peaks. The smoothed surface is well adapted to bonding to a receiver element and exfoliation of a new lamina. A variety of devices may be fabricated from the lamina, for example a photovoltaic cell.

10-28-2010

20110143480

MICROWAVE ANNEAL OF A THIN LAMINA FOR USE IN A PHOTOVOLTAIC CELL - A cleave plane is defined in a semiconductor donor body by implanting ions into the wafer. A lamina is cleaved from the donor body, and a photovoltaic cell is formed which comprises the lamina. The implant may cause some damage to the crystal structure of the lamina. This damage can be repaired by annealing the lamina using microwave energy. If the lamina is bonded to a receiver element, the receiver element may be either transparent to microwaves, or may reflect microwaves, while the semiconductor material absorbs the microwaves. In this way the lamina can be annealed at high temperature while the receiver element remains cooler.

06-16-2011

20120168091

Method and Apparatus for Forming a Thin Lamina - A method for producing a lamina from a donor body includes implanting the donor body with an ion dosage and separably contacting the donor body with a susceptor assembly, where the donor body and the susceptor assembly are in direct contact. A lamina is exfoliated from the donor body, and a deforming force is applied to the lamina or to the donor body to separate the lamina from the donor body.

07-05-2012

20120171809

Method and Apparatus for Forming a Thin Lamina - A method for producing a lamina from a donor body includes implanting the donor body with an ion dosage and heating the donor body to an implant temperature during implanting. The donor body is separably contacted with a susceptor assembly, where the donor body and the susceptor assembly are in direct contact. A lamina is exfoliated from the donor body by applying a thermal profile to the donor body. Implantation and exfoliation conditions may be adjusted in order to maximize the defect-free area of the lamina.

07-05-2012

20120192935

BACK-CONTACT PHOTOVOLTAIC CELL COMPRISING A THIN LAMINA HAVING A SUPERSTRATE RECEIVER ELEMENT - A method to fabricate a photovoltaic device includes forming first and second contact regions at the first surface of a semiconductor donor body. A cleave plane may be formed by implanting ions into the donor body, and a lamina that includes the contact regions is cleaved from the donor body at the cleave plane. The first surface of the lamina may be contacted with a temporary support and fabricated into a photovoltaic device, wherein the lamina comprises the base of the photovoltaic device.

08-02-2012

20130199611

Method for Forming Flexible Solar Cells - The invention provides for a semiconductor wafer with a metal support element suitable for the formation of a flexible or sag tolerant photovoltaic cell. A method for forming a photovoltaic cell may comprise providing a semiconductor wafer have a thickness greater than 150 μm, the wafer having a first surface and a second surface opposite the first and etching the semiconductor wafer a first time so that the first etching reduces the thickness of the semiconductor wafer to less than 150 μm. After the wafer has been etched a first time, a metal support element may be constructed on or over the first surface; and a photovoltaic cell may be fabricated, wherein the semiconductor wafer comprises the base of the photovoltaic cell.

08-08-2013

20130200496

MULTI-LAYER METAL SUPPORT - The invention provides a method of forming an electronic device from a lamina that has a coefficient of thermal expansion that is matched or nearly matched to a constructed metal support. In some embodiments the method comprises implanting the top surface of a donor body with an ion dosage to form a cleave plane followed by exfoliating a lamina from the donor body. After exfoliating the lamina, a flexible metal support that has a coefficient of thermal expansion with a value that is within 10% of the value of the coefficient of thermal expansion of the lamina is constructed on the lamina. In some embodiments the coefficients of thermal expansion of the metal support and the lamina are within 10% or within 5% of each other between the temperatures of 100 and 600 ° C.

08-08-2013

20130200497

MULTI-LAYER METAL SUPPORT - The invention provides a method of forming an electronic device from a lamina that has a coefficient of thermal expansion that is matched or nearly matched to a constructed metal support. In some embodiments the method comprises implanting the top surface of a donor body with an ion dosage to form a cleave plane followed by exfoliating a lamina from the donor body. After exfoliating the lamina, a flexible metal support that has a coefficient of thermal expansion with a value that is within 10% of the value of the coefficient of thermal expansion of the lamina is constructed on the lamina. In some embodiments the coefficients of thermal expansion of the metal support and the lamina are within 10% or within 5% of each other between the temperatures of 500 and 1050° C.

08-08-2013

20130203205

Method for Fabricating Backside-Illuminated Sensors - A method for fabricating a backside-illuminated sensor includes providing a thin film semiconductor lamina having a first conductivity, and forming a doped region having a second conductivity within the lamina and at a front surface of the lamina. The lamina may be provided as a free-standing lamina, or may be provided as a semiconductor donor body from which the lamina is cleaved. An electrical connection is formed to the doped region. A temporary carrier is contacted to the back surface of the semiconductor and later removed. A backside-illuminated sensor is fabricated from the semiconductor lamina, in which the thickness of the semiconductor lamina remains substantially unchanged during the fabrication process.

08-08-2013

20130203251

Method for Three-Dimensional Packaging of Electronic Devices - An interposer is fabricated from a lamina. A donor body is provided, ions are implanted into a first surface of the donor body to define a cleave plane, a temporary carrier is separably contacted to the donor body, and the lamina is cleaved from the donor body. The lamina has front surface and a back surface, with a thickness from the front surface to the back surface. A via hole is formed in the lamina, where the via hole extends through the thickness of the lamina. The temporary carrier is removed from the lamina, and the lamina may be fabricated into an interposer for three-dimensional integrated circuit packages.

08-08-2013

20140261654

FREE-STANDING METALLIC ARTICLE FOR SEMICONDUCTORS - A free-standing metallic article, and method of making, is disclosed in which the metallic article is electroformed on an electrically conductive mandrel. The mandrel has an outer surface with a preformed pattern, wherein at least a portion of the metallic article is formed in the preformed pattern. The metallic article is separated from the electrically conductive mandrel, which forms a free-standing metallic article that may be coupled with the surface of a semiconductor material for a photovoltaic cell.

09-18-2014

20140261659

Free-Standing Metallic Article for Semiconductors - A free-standing metallic article, and method of making, is disclosed in which the metallic article is electroformed on an electrically conductive mandrel. The mandrel has an outer surface with a preformed pattern, wherein at least a portion of the metallic article is formed in the preformed pattern. The metallic article is separated from the electrically conductive mandrel, which forms a free-standing metallic article that may be coupled with the surface of a semiconductor material for a photovoltaic cell.

09-18-2014

20140261661

FREE-STANDING METALLIC ARTICLE WITH OVERPLATING - A free-standing metallic article, and method of making, is disclosed in which the metallic article is electroformed on an electrically conductive mandrel. The mandrel has an outer surface layer having a preformed pattern. The outer surface layer has a dielectric region and an exposed metal region. The metallic article has a plurality of electroformed elements that are formed on the exposed metal region of the outer surface layer of the electrically conductive mandrel. A first electroformed element has an overplated portion formed above the outer surface layer of the mandrel. The metallic article is configured to serve as an electrical conduit for a photovoltaic cell, and forms a unitary, free-standing piece when separated from the electrically conductive mandrel.

09-18-2014

20140262793

ADAPTABLE FREE-STANDING METALLIC ARTICLE FOR SEMICONDUCTORS - A free-standing metallic article, and method of making, is disclosed in which the metallic article is electroformed on an electrically conductive mandrel. The metallic article has a plurality of electroformed elements that are configured to serve as an electrical conduit for a photovoltaic cell. A first electroformed element has at least one of: a) a non-uniform width along a first length of the first element, b) a change in conduit direction along the first length of the first element, c) an expansion segment along the first length of the first element, d) a first width that is different from a second width of a second element in the plurality of electroformed elements, e) a first height that is different from a second height of the second element in the plurality of electroformed elements, and f) a top surface that is textured.

09-18-2014

Patent applications by Gopal Prabhu, San Jose, CA US

Gopalakrishna Prabhu, San Jose, CA US

Patent application number

Description

Published

20110237013

Creation of Low-Relief Texture for a Photovoltaic Cell - A novel method is described to create low-relief texture at a light-facing surface or a back surface of a photovoltaic cell. The peak-to-valley height and average peak-to-peak distance of the textured surface is less than about 1 microns, for example less than about 0.8 micron, for example about 0.5 microns or less. In a completed photovoltaic device, average reflectance for light having wavelength between 375 and 1010 nm at a light-facing surface with this texture is 6 percent or less, for example about 5 percent or less, in some instances about 3.5 percent. This texture is produced by forming an optional oxide layer at the surface, lightly buffing the surface, and etching with a crystallographically selective etch. Excellent texture may be produced by etching for as little as twelve minutes or less. Very little silicon, for example about 0.3 mg/cm

09-29-2011

20120080083

SEMICONDUCTOR ASSEMBLY WITH A METAL OXIDE LAYER HAVING INTERMEDIATE REFRACTIVE INDEX - A semiconductor assembly is described with a thin metal oxide layer interposed between a transparent conductive oxide and an amorphous silicon layer, along with methods for making this structure. The metal oxide layer has a refractive index or range of refractive indices intermediate between that of the transparent conductive oxide and the amorphous silicon layer, and thus tends to reduce reflection at the interface. Such a layer can be used at the light-facing surface of a light-sensitive device such as a photovoltaic cell to maximize the amount of incident light entering the cell. Titanium oxide is a suitable metal oxide, and has a refractive index between those of silicon and of both indium tin oxide and aluminum-doped zinc oxide, two common transparent conductive oxides.

04-05-2012

20120220068

Method to Form a Device by Constructing a Support Element on a Thin Semiconductor Lamina - A semiconductor assembly is described in which a support element is constructed on a surface of a semiconductor lamina. Following formation of the thin lamina, which may have a thickness about 50 microns or less, the support element is formed, for example by plating, or by application of a precursor and curing in situ, resulting in a support element which may be, for example, metal, ceramic, polymer, etc. This is in contrast to pre-formed support element which is affixed to the lamina following its formation, or to a donor wafer from which the lamina is subsequently cleaved.

08-30-2012

Gopalakrishna B. Prabhu, San Jose, CA US

Patent application number

Description

Published

20090021024

Retaining Ring with Shaped Profile - Retaining rings with curved surfaces are described. The curved surfaces prevent damage to a fixed abrasive polishing pad when the retaining ring is used in a polishing process. The curved surfaces are on the bottom surface of the ring, such as along the outer diameter and/or along the sidewalls of channels formed in the bottom of the ring.

01-22-2009

20090088051

LEADER AND TRAILER FOR LINEAR POLISHING SHEET - A polishing article includes an elongated substantially rectangular central portion and a substantially rectangular edge portion. The central portion includes a polishing layer with a polishing surface. The central portion has a width, a length greater than the width and defining a longitudinal axis, and an edge. The edge portion extends from the edge of the central portion, the edge portion is thinner than the central portion, and the polishing layer does not extend onto the edge portion.

04-02-2009

20090221217

SOLAR PANEL EDGE DELETION MODULE - The present invention generally relates to an edge deletion module positioned within an automated solar cell fabrication line. The edge deletion module may include a grinding wheel device for removing material from edge regions of a solar cell device and cleaning the edge regions of the solar cell device after removing the material. The edge deletion module may also include an abrasive element, a portion of which is ground as it is periodically, laterally advanced toward the grinding wheel device. A controller is provided for controlling the operation and function of various facets of the module.

09-03-2009

20090253358

POLISHING ARTICLE WITH INTEGRATED WINDOW STRIPE - A polishing article includes a polishing layer having a polishing surface and a solid light-transmissive window in the polishing layer, the window having a first non-linear edge that extends along a first axis parallel to the polishing surface, the first non-linear edge including a plurality of projections and a plurality of recesses extending parallel to the polishing surface and disposed in an alternating pattern along the first axis.

10-08-2009

20090277006

METHOD FOR FORMING AN ELECTRICAL CONNECTION - Embodiments of the present invention provide a method of forming an electrical connection on a device. In one embodiment, the electrical connection is attached to the device via an adhesive having electrically conductive particles disposed therein. In one embodiment, the adhesive is cured while applying pressure such that the conductive particles align, have a reduced particle-to-particle spacing, or come into contact with each other to provide a more directly conductive (less resistive) path between the electrical connection and the device. In one embodiment of the present invention, a method for forming an electrical lead on a partially formed solar cell during formation of the solar cell device is provided. The method comprises placing a side-buss wire onto a pattern of electrically conductive adhesive disposed on a back contact layer of a solar cell device substrate, laminating the side-buss wire and electrically conductive adhesive between the solar cell device substrate and a back glass substrate to form a composite solar cell structure, and curing the electrically conductive adhesive while applying pressure and heat to the composite solar cell structure

11-12-2009

20100112919

MONOLITHIC LINEAR POLISHING SHEET - A chemical mechanical polishing article can be a single contiguous layer having a polishing surface, the layer being an elongated substantially rectangular sheet having a width and a length at least four times greater than the width. Forming a polishing article can include depositing a liquid precursor on a moving belt, at least partially curing the liquid precursor while on the moving belt to form a polishing layer, and detaching the polishing layer from the belt.

05-06-2010

20120021671

REAL-TIME MONITORING OF RETAINING RING THICKNESS AND LIFETIME - A method and apparatus for monitoring the condition of a surface of a retaining ring disposed on a carrier head in a polishing module is described. In one embodiment, a method for monitoring at least one surface of a retaining ring coupled to a carrier head is provided. The method includes moving the carrier head adjacent a sensor device disposed in a polishing module, transmitting energy from the sensor device toward the retaining ring, receiving energy reflected from the retaining ring, and determining a condition of the retaining ring based on the received energy.

01-26-2012

20120028548

RETAINING RING WITH SHAPED PROFILE - Retaining rings with curved surfaces are described. The curved surfaces prevent damage to a fixed abrasive polishing pad when the retaining ring is used in a polishing process. The curved surfaces are on the bottom surface of the ring, such as along the outer diameter and/or along the sidewalls of channels formed in the bottom of the ring.

02-02-2012

20140237905

METHOD OF FORMING POLISHING SHEET - A chemical mechanical polishing article can be a single contiguous layer having a polishing surface, the layer being an elongated substantially rectangular sheet having a width and a length at least four times greater than the width. Forming a polishing article can include depositing a liquid precursor on a moving belt, at least partially curing the liquid precursor while on the moving belt to form a polishing layer, and detaching the polishing layer from the belt.

08-28-2014

Patent applications by Gopalakrishna B. Prabhu, San Jose, CA US

Jaidev Prabhu, San Jose, CA US

Patent application number

Description

Published

20120166848

ADAPTIVE NETWORK AND METHOD - A plurality of modules interact to form an adaptive network in which each module transmits and receives data signals indicative of the proximity of objects. A central computer accumulates the data produced or received and relayed by each module. One of the modules is operable as a leaf node having a sleep mode to conserve energy and an interactive mode. The central computer can send a message to the leaf node commanding it to stay awake in order to receive subsequent communications.

06-28-2012

20120290857

ADAPTIVE NETWORK AND METHOD - A plurality of modules interact to form an adaptive network in which each module transmits and receives data signals indicative of proximity of objects. A central computer accumulates the data produced or received and relayed by each module for analyzing proximity responses to transmit through the adaptive network control signals to a selectively-addressed module to respond to computer analyses of the data accumulated from modules forming the adaptive network. Interactions of local processors in modules that sense an intrusion determine the location and path of movements of the intruding object and control cameras in the modules to retrieve video images of the intruding object. Multiple operational frequencies in adaptive networks permit expansions by additional networks that each operate at separate radio frequencies to avoid overlapping interaction. Additional modules may be introduced into operating networks without knowing the operating frequency at the time of introduction. Remote modules operating as leaf nodes of the adaptive network actively adapt to changed network conditions upon awaking from power-conserving sleep mode. New programs are distributed to all or selected modules under control of the base station.

11-15-2012

Julian Prabhu, Huntington Beach, CA US

Patent application number

Description

Published

20090010991

Nasal Passage Stent - A drug coated nasal stent implant that provides filtration of environmental pollutants and airborne allergens from inhaled air regulating the air before it is ingested into the remainder of the respiratory tract. The coatings include but are not limited to a variety of allergenic-specific antigen targeted antibodies as well as anti-inflammatory drugs such as antihistamines

01-08-2009

20090042651

Mobile wireless entertainment system and network - A mobile wireless multilingual entertainment system that comprises one or more wireless devices, internet/telephone connections, portable computer/monitor/consoles, via a touch tone screen that can be used for multiple applications from airlines to opera theaters. The system also has a payment feature, a security feature, an alarm that prevents removal by the user from the intended location. The system further provides voice activation, video, audio, CD/DVD, ear and speaker phone capability, a Braille feature and operates on AC/DC, solar power.

02-12-2009

20100211181

NASAL PASSAGE STENT - Embodiments of the invention are directed to nasal stents incorporating a filter and methods of use thereof. In one embodiment, a nasal stent has a stent body having a lumen with the same inner diameter (ID) along the length thereof. In an alternative embodiment, the nasal stent has a stent body having a lumen with a decreasing ID along the length thereof. In any embodiment, the stent is capable of having a compressed configuration and an expanded configuration. The nasal stent may further include a tubular insert housing a retaining mechanism to retain a filter at a proximal end thereof. A support may further fix the filter at a proximal end thereof. When inserted within a nostril of a person, the filter may function to filter particulates from the air when a person breathes in.

08-19-2010

20110105169

Wireless/Laser Registration Method and System - Registration is required for all vehicles, equipment, appliances, conferences, events, etc. The proposed concept is to provide each unit described as a vehicle, equipment, appliance, vessel, train, lifeguard station etc., that requires registration, with a wireless device that can display pertinent information (technical and operational data) and personal details such as, registration month and year, car vehicle identification number, license plate number, owners name and address etc. This device operates similar to a wireless mobile phone or an onboard vehicle global positioning system (GPS) and can be managed from a central location. Such a system can also be used for multiple other events such as—vehicle or trade shows, outdoor events, conferences, animal tags etc.

05-05-2011

20130197658

NASAL PASSAGE STENT - Embodiments of the invention are directed to nasal stents incorporating a filter and methods of use thereof. In one embodiment, a nasal stent has a stent body having a lumen with the same inner diameter (ID) along the length thereof. In an alternative embodiment, the nasal stent has a stent body having a lumen with a decreasing ID along the length thereof. In any embodiment, the stent is capable of having a compressed configuration and an expanded configuration. The nasal stent may further include a tubular insert housing a retaining mechanism to retain a filter at a proximal end thereof. A support may further fix the filter at a proximal end thereof. When inserted within a nostril of a person, the filter may function to filter particulates from the air when a person breathes in.

08-01-2013

Patent applications by Julian Prabhu, Huntington Beach, CA US

Mythili Suryanarayana Prabhu, San Jose, CA US

Patent application number

Description

Published

20140244798

TCP-Based Weighted Fair Video Delivery - Weighted fair sharing of video bandwidth may be provided, for example, over TCP. First, a number of connections with a receiver may be opened. The number of active connections may be proportional to a weighting parameter associated with a stream. Next, the stream may be transmitted over the number of active connections and feedback information may be obtained corresponding to the stream received at the receiver. A quality adaptation may then be made based on the obtained feedback. The process may be repeated over time with the number of active connections changing along with the weighting parameters.

08-28-2014

Omkar Prabhu, Sunnyvale, CA US

Patent application number

Description

Published

20140265927

CONFIGURATION FREE AND DEVICE BEHAVIOR UNAWARE WIRELESS SWITCH - Apparatuses, methods and systems for controlling lighting, an environment factor, or security of a structure are discloses. A lighting control system includes a plurality of lighting devices, a central server and a switch. The central server communicates with each of the plurality of lighting devices, and controls an operating configuration of each of the lighting devices. The switch communicates with at least some of the plurality of lighting devices, wherein the communication includes information, and wherein the at least some of the plurality of lighting devices respond to the information based on the operating configuration of the at least some of the plurality of lighting devices.

09-18-2014

Omkar G. Prabhu, San Jose, CA US

Patent application number

Description

Published

20120185187

COMMUNICATIONS SYSTEM - An apparatus and method for monitoring energy storage devices is disclosed. A monitoring system that monitors an energy storage device collects and stores operating data from the device and relays that data through a communications system to one or more servers. The servers can store the operating data from each of the monitored energy storage devices.

07-19-2012

Pratap Prabhu, Sunnyvale, CA US

Patent application number

Description

Published

20140282884

INSTANT PERSONALIZATION SECURITY - A method and system for instant personalization security are provided. The system includes a platform on a user to open applications and/or access web sites. When an application is integrated with the platform, the identification of the application can be combined with the ID of the user and encrypted into a hashed ID. The application does not have access to the user's fully identifying profile (e.g., UID or other public information). Instead, the application only has access to pseudonymous profile (e.g., the hashed ID, first name, last initial, small profile pictures and/or other non-fully identifying profile information) of the user. One or more options are then provided for the user to authorize or reject the application to access the user's fully identifying profile. Upon the user's authorization, an access token is provided to the application to access a subset of the user's fully identifying profile.

09-18-2014

Pratap Venkataram Prabhu, Sunnyvale, CA US

Patent application number

Description

Published

20130212175

Automated Customer Incident Report Management in a Social Networking System - A social networking system is configured to generate node graphs to handle specific types of customer incident reports. The node graphs comprise data structures that include nodes connected in acyclic graphs. Each node includes a node handler and optionally a user interface widget. Activating a node graph causes a subset of the nodes in the node graph to execute their node handlers. The executing node handlers generate a customer incident resolution that may include information gathering, manual review, and communications to users and third-party systems. Generation of the customer incident resolution through the node graphs allows the social networking system to handle customer incidents consistently, efficiently, and in a scalable manner.

08-15-2013

Raghavendra S. Prabhu, Los Angeles, CA US

Patent application number

Description

Published

20110128178

COGNITIVE ANTI-JAM RECEIVER SYSTEMS AND ASSOCIATED METHODS - Cognitive anti-jam receiver systems and associated methods are provided. The systems and methods may include a signal analysis module that processes a baseband signal to determine one or more signal characteristics of the baseband signal, the baseband signal comprising at least a desired signal; a cognitive decision unit that receives the one or more signal characteristics from the signal analysis module, and generates at least one first adaptive parameter; and at least one anti-jam processing module that processes the baseband signal to generate a modified signal that reduces an impact of at least one jammer signal on a quality of reception of the desired signal from the baseband signal, where processing by the at least one anti-jam processing module may be based at least in part on the received at least one first adaptive parameter from the cognitive decision unit.

06-02-2011

Raghavendra Vinayak Prabhu, Sunnyvale, CA US

Patent application number

Description

Published

20080243819

SEARCH MACRO SUGGESTIONS RELEVANT TO SEARCH QUERIES - Search macros suggestions are provided to refine a user's search. When a search query is received from an end user, one or more search macros are determined to be relevant to the search query. The search macros are then provided to the end user as suggestions for refining the user's search. In some instances, the end user may chose to select one of the suggested search macros. A search is then performed using the search query and the selected search macro to provide search results to the end user that may be more relevant to the user's search.

10-02-2008

20100161583

SEARCH MACRO SUGGESTIONS RELEVANT TO SEARCH QUERIES - Search macros suggestions are provided to refine a user's search. When a search query is received from an end user, one or more search macros are determined to be relevant to the search query. The search macros are then provided to the end user as suggestions for refining the user's search. In some instances, the end user may chose to select one of the suggested search macros. A search is then performed using the search query and the selected search macro to provide search results to the end user that may be more relevant to the user's search.

06-24-2010

Santosh Prabhu, Santa Clara, CA US

Patent application number

Description

Published

20140306378

HYBRID STENT AND METHOD OF MAKING - A stent is formed by encasing or encapsulating metallic rings in an inner polymeric layer and an outer polymeric layer. At least one polymer link connects adjacent metallic rings. The stent is drug loaded with one or more therapeutic agent or drug, for example, to reduce the likelihood of the development of restenosis in the coronary arteries. The inner and outer polymeric materials can be of the same polymer or different polymer to achieve different results, such as enhancing flexibility and providing a stent that is visible under MRI, computer tomography and x-ray fluoroscopy.

10-16-2014

Santosh Prabhu, San Jose, CA US

Patent application number

Description

Published

20090270973

STENT ASSEMBLY FOR THE TREATMENT OF VULNERABLE PLAQUE - An intravascular stent assembly for implantation in a body lumen, such as a coronary artery, is designed to treat a lesion with vulnerable plaque by reducing the fibrous cap stresses. A polymeric sleeve having first and second ends interconnects a first metallic stent and a second metallic stent. The first end is bonded to a distal end region of the first stent and the second end to a proximal end region of the second stent. The polymeric sleeve can be loaded with a therapeutic drug or agent to further control local thrombosis and/or induce healing if the plaque fibrous cap ruptures during or after implantation. Methods of making an intravascular stent assembly for the treatment of vulnerable plaque are also provided.

10-29-2009

20100131046

STENT WITH DRUG COATING WITH VARIABLE RELEASE RATE - A stent is provided with a coating having a variable drug release rate. The release rate can be greater over a curved or bent segment of a strut network as compared to generally linear segments of the strut network. The coating can have a barrier region that is thicker over the generally linear segments. The coating can have a drug mixed with polymers. The curved or bent segment can have a greater amount of a polymer having relatively high drug permeability as compared to the generally linear segments.

05-27-2010

20110008528

METHOD OF COATING A STENT HAVING VARIABLE DRUG RELEASE RATE - A method of coating a stent may comprise applying a composition including a drug and a polymer to the stent to form a coating. The release rate of the drug from the coating gradually increases along a length of the stent which extends axially from opposite ends of the stent. The variable drug release rate can be accomplished by varying the coating thickness, by applying a barrier region over the drug-containing composition, and/or by having different polymers in the coating, the polymers having different drug permeabilities.

01-13-2011

20110144736

FLEXIBLE STENT - The present invention is directed to a flexible expandable stent for implantation in a body lumen, such as a coronary artery. The stent generally includes a series of metallic cylindrical rings longitudinally aligned on a common axis of the stent and interconnected by a series of links which be polymeric or metallic. Varying configurations and patterns of the links provides longitudinal and flexural flexibility to the stent while maintaining sufficient column strength to space the cylindrical rings along the longitudinal axis. The metallic material forming the rings provides the necessary radial stiffness.

06-16-2011

20110198327

HYBRID STENT AND METHOD OF MAKING - A stent is formed by encasing or encapsulating metallic rings in an inner polymeric layer and an outer polymeric layer. At least one polymer link connects adjacent metallic rings. The stent is drug loaded with one or more therapeutic agent or drug, for example, to reduce the likelihood of the development of restenosis in the coronary arteries. The inner and outer polymeric materials can be of the same polymer or different polymer to achieve different results, such as enhancing flexibility and providing a stent that is visible under MRI, computer tomography and x-ray fluoroscopy.

08-18-2011

20120274001

HYBRID STENT AND METHOD OF MAKING - A stent is formed by encasing or encapsulating metallic rings in an inner polymeric layer and an outer polymeric layer. At least one polymer link connects adjacent metallic rings. The stent is drug loaded with one or more therapeutic agent or drug, for example, to reduce the likelihood of the development of restenosis in the coronary arteries. The inner and outer polymeric materials can be of the same polymer or different polymer to achieve different results, such as enhancing flexibility and providing a stent that is visible under MRI, computer tomography and x-ray fluoroscopy.

11-01-2012

Patent applications by Santosh Prabhu, San Jose, CA US

Santosh Prabhu, Sunnyvale, CA US

Patent application number

Description

Published

20090012601

STENT AND CATHETER ASSEMBLY AND METHOD FOR TREATING BIFURCATIONS - An improved stent system for treating a bifurcation. Up to three stents are mounted on two parallel balloon catheters wherein a proximal stent is disposed about both balloons while two distal stents are each disposed about one of the balloons. Such configuration enhances the flexibility of the assembly to facilitate its advancement through tortuous vasculature, while the structural independence of the stents maximizes the systems ability to spread into a wide range of bifurcation angles. A single link between each distal stent and the proximal stent may be relied upon to maintain relative stent position during deployment.

01-08-2009

Santosh V. Prabhu, Sunnyvale, CA US

Patent application number

Description

Published

20140114399

METHODS FOR VASCULAR RESTORATION THERAPY - A medical device includes a polymer scaffold crimped to a catheter having an expansion balloon. The scaffold has a structure that produces a low late lumen loss when implanted within a peripheral vessel and also exhibits a high axial fatigue life. In a preferred embodiment the scaffold forms ring structures interconnected by links, where a ring has 12 crowns and at most two links connecting adjacent rings.

04-24-2014

Satish Prabhu, Cupertino, CA US

Patent application number

Description

Published

20130085904

Mobile Expense Solutions Architecture - An expense solutions architecture is provided, in which an improved approach is described for implementing an expense solution. Mobile devices are integrated into an expense solutions architecture so that expense-related data can be captured, created, entered, and/or edited on the mobile device. This permits the user to generate expense line entries more in alignment with the location/way that many expense are actually generated, e.g., while the user is away from the office computer.

04-04-2013

20130085905

MOBILE DEVICE FOR MOBILE EXPENSE SOLUTIONS ARCHITECTURE - An improved approach is described for implementing mobile devices for an expense solutions architecture. Mobile devices are integrated into an expense solutions architecture so that expense-related data can be captured, created, entered, and/or edited on the mobile device. This permits the user to generate expense line entries more in alignment with the location/way that many expense are actually generated, e.g., while the user is away from the office computer.

04-04-2013

20130085906

METHOD AND SYSTEM FOR IMPLEMENTING EFFICIENT ENTRY FOR MOBILE EXPENSE SOLUTIONS - An improved approach is described for implementing an expense solution that includes efficient entry methods and systems. Mobile devices are integrated into an expense solutions architecture so that expense-related data can be captured, created, entered, and/or edited on the mobile device. This permits the user to generate expense line entries more in alignment with the location/way that many expense are actually generated, e.g., while the user is away from the office computer.

04-04-2013

20130085907

CALENDAR ENTRY FOR MOBILE EXPENSE SOLUTIONS - An improved approach is described for implementing an expense solution that includes calendar entry methods and systems. Mobile devices are integrated into an expense solutions architecture so that expense-related data can be captured, created, entered, and/or edited on the mobile device. This permits the user to generate expense line entries more in alignment with the location/way that many expense are actually generated, e.g., while the user is away from the office computer.

04-04-2013

20130085908

IMAGE ENTRY FOR MOBILE EXPENSE SOLUTIONS - An improved approach is described for implementing an expense solution that includes image entry methods and systems. Mobile devices are integrated into an expense solutions architecture so that expense-related data can be captured, created, entered, and/or edited on the mobile device. This permits the user to generate expense line entries more in alignment with the location/way that many expense are actually generated, e.g., while the user is away from the office computer.

04-04-2013

Shivanand Prabhu, Los Angeles, CA US

Patent application number

Description

Published

20130179061

SMART ELECTRIC VEHICLE (EV) CHARGING AND GRID INTEGRATION APPARATUS AND METHODS - An expert system manages a power grid wherein charging stations are connected to the power grid, with electric vehicles connected to the charging stations, whereby the expert system selectively backfills power from connected electric vehicles to the power grid through a grid tie inverter (if present) within the charging stations. In more traditional usage, the expert system allows for electric vehicle charging, coupled with user preferences as to charge time, charge cost, and charging station capabilities, without exceeding the power grid capacity at any point. A robust yet accurate state of charge (SOC) calculation method is also presented, whereby initially an open circuit voltage (OCV) based on sampled battery voltages and currents is calculated, and then the SOC is obtained based on a mapping between a previously measured reference OCV (ROCV) and SOC. The OCV-SOC calculation method accommodates likely any battery type with any current profile.

07-11-2013

Subha Prabhu, Cupertino, CA US

Patent application number

Description

Published

20130155441

SCHEDULED AND SECURED CLOUD PRINT SERVICES - Techniques are provided for processing scheduled and secured print requests. In one embodiment, a printing device receives a notification form a network service that a request to print an electronic document has been received. The printing device determines whether the request indicates secure printing of the electronic document. In response to determining that the request indicates secure printing of the electronic document, the printing device prompts, through a user interface, a user for a release code. In response to receiving the release code, the printing device sends the release code to the network service. The printing device receives, from the network service, access data that allows for retrieval of the electronic document. The printing device downloads the electronic document based on the access data received from the network service and generates print data for the electronic document.

06-20-2013

Vasantha Prabhu, Sunnyvale, CA US

Patent application number

Description

Published

20110173356

EXCLUSIVE ACCESS DURING A CRITICAL SUB-OPERATION TO ENABLE SIMULTANEOUS OPERATIONS - A method, apparatus, and system of exclusive access during a critical sub-operation to enable simultaneous operations are disclosed. In one embodiment, a method of a host device includes identifying a critical sub-operation of an operation associated with a storage system, applying a lock associated with the critical sub-operation based on a type of the sub-operation, providing exclusive access of the critical sub-operation to a first instance requiring the critical sub-operation, denying other instances access to the critical sub-operation during an interval comprising a period when the first instance executes the critical sub-operation, and releasing the lock when the critical sub-operation is no longer required by the first instance. The first instance and the other instances may originate on different host devices.

07-14-2011

Vinay Prabhu, Sunnyvale, CA US

Patent application number

Description

Published

20140281548

INTRA-COMPUTER PROTECTED COMMUNICATIONS BETWEEN APPLICATIONS - Systems, methods and machine-readable media for providing a security service are disclosed. The methods include receiving a modification of the application object code to allow the software application to transmit a request for the security service; retrieving the modified application object code corresponding to the software application from memory; receiving, via a processor, the request for the security service from the modified application object code; and providing, via the processor, the security service. The systems and machine-readable media performing operations according to the methods disclosed.

09-18-2014

20140282833

Methods, Systems and Machine-Readable Media For Providing Security Services - Systems, methods and machine-readable media for providing a security service are disclosed. The methods include receiving a modification of the application object code to allow the software application to transmit a request for the security service; retrieving the modified application object code corresponding to the software application from memory; receiving, via a processor, the request for the security service from the modified application object code; and providing, via the processor, the security service. The systems and machine-readable media performing operations according to the methods disclosed.

09-18-2014

Vinod Prabhu, Fremont, CA US

Patent application number

Description

Published

20100114644

SYSTEMS AND METHODS FOR SCHEDULING CONTACT CENTER AGENTS - Systems and methods for scheduling workforces are provided. In this regard, a representative method includes: generating a forecast requirement related to a volume of work to be handled by a first workforce and a second workforce, wherein the second workforce is remote from the first workforce; generating work schedules for personnel of the second workforce based on the forecast requirement and skills of the personnel of the second workforce; receiving information corresponding to the work schedules and the skills of the personnel of the second workforce that share work with the first workforce, wherein the work schedules comprise activities; correlating the skills contained in the information with skills that are to be used for scheduling personnel of the first workforce; correlating the activities contained in the information with activities that are to be used for scheduling the personnel of the first workforce; and generating work schedules for the personnel of the first workforce based, at least in part, on a correlation between the skills of the personnel of the second workforce and the first workforce and a correlation between the activities of the personnel of the second workforce and the first workforce.